Improvement in gates



iuited $513125 @aient @ptite GEORGE A. SLATER, O FQBENTGN HARlSQR,MICHIGAN.

Letters Patent No. 110,687, (lated January 3, 1871; antedateri December30, 1870.

IMPROVEMENT IN GATES.

The Schedule referred to in these Letters Patent and making parl: o thesame.

'Be it known that I, GEORGE A. SLA'rn'n, of Benton Harbor, in' thecounty of Berrien and State of Michigan, have invented certain new anduseful Improvements in Gates, of which 'the following is aspecin'cation.

Nature (md Objects of ihc-Incention.

My invention relates to au improvement in selfclosing gates, andconsists in constructing and hauging a gate to open and close byvibration in a 'verticall plane, a perpendicular post on one or bothsides sustaining it laterally and furnishing support for the pinion 011which it swings, so that its own gravity keeps the gate closed when notpurposely held open.

Description of theDrawings. Figure l is a perspective view of theinvention, showing the gate closed.

Figure 2 is a perspective view of the invention, the gate being open. lFigure 3 is a transverse section of the invention.

General Description..

A is the gate, constructed, as indicated in the diagram, of lightpickets of Wood, fastened at equal distances to the upper and lowerparallel arms ot' the gate. v v

The gate may also be madeby using a sufticient number ot'v radius'es ofa proper length, supported at their ends by a light frame-work of Wood,givng'to it any proper shape, and intersectingfthese radiuses withgalvanized-ironwire at equal distances from the center outward.

B is the pinion of iron oristel, supported by posts.

O G, on which the gate is hung and vibrates.

D D are posts' oneither side of the gateway, Aforming part of the fence.

When the gate is closed, as in`ig. 1, a`slight down- Ward pressure oneitherarm of the gate wlll cause it to swing on its axis B, and toassume the position .seen in iig. 2, leaving an open passage-way betweenthe posts C and D.

Onthe restraint being removed the gate immediately returns to its formerposition, shown in g. 1,

